David McConnell sold books from door to door.Housewives(家庭主妇)were not interested in the books.Usually before he had enough time to say anything about his books,the women closed their doors.But he didn ¯t give up.McConnell decided to bring each of them a present,a small bottle of perfume(香水)made by himself.He soon found that the women liked the perfume better than the books.He stopped selling books to sell perfume instead and started his own company °Avon ±,which is a great success.When you do nothing,you learn nothing.But when you try,even though you are not successful,you will learn what doesn ¯t work and that puts you closer to what will work.It doesn ¯t matter how many times you are not successful.It does matter that you will be successful one day.Edison was not on the way to success until people bought his first invention.Success once is enough for Edison.And the same for you asuccess once is enough.